Sala Seminarios IFIC (Edf. Institutos de Investigación) Jueves, 17 de Septiembre de 2009 a las 12:00 PM
Resumen
Primordial gravitational waves are expected as a result of Inflation.
There is general agreement that these gravitational waves imprint a
specific pattern of polarization (B-modes or tensor modes) in the
Cosmic Microave Background. Detection of these B-modes will provide
direct constraints on the energy scale of Inflation and additional
information on the nature of the Inflation potential. I will describe
the predictions of B-mode angular power spectra for various models
and the status of current CMB polarization experiments. In particular
I will describe the spanish led project QUIJOTE-CMB (Teide
Observatory) which is aimed to achieve very high sensitivity
polarization measurements of the northern sky in the frequency range
10-40 GHz. The combination of QUIJOTE and Planck data will allow a
better control of foreground contamination and higher sensitivity to
the B-modes.
